WO2019075614A1 - 流体灭菌装置以及灭菌方法 - Google Patents

流体灭菌装置以及灭菌方法 Download PDF

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Publication number
WO2019075614A1
WO2019075614A1 PCT/CN2017/106375 CN2017106375W WO2019075614A1 WO 2019075614 A1 WO2019075614 A1 WO 2019075614A1 CN 2017106375 W CN2017106375 W CN 2017106375W WO 2019075614 A1 WO2019075614 A1 WO 2019075614A1
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Prior art keywords
fluid
sterilization
lamp
pressure
gas
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PCT/CN2017/106375
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English (en)
French (fr)
Inventor
何宗江
贾志强
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深圳前海小有技术有限公司
深圳市海司恩科技有限公司
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Priority to PCT/CN2017/106375 priority Critical patent/WO2019075614A1/zh
Publication of WO2019075614A1 publication Critical patent/WO2019075614A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation

Definitions

  • the present invention relates to the field of ultraviolet disinfection and sterilization, and more particularly to a fluid sterilization device and a sterilization method.
  • LED ultraviolet light having a sterilizing effect has been manufactured by using a light-emitting diode (LED).
  • LED ultraviolet sterilizing lamp has low power consumption and high safety.
  • the advantages of small size have been applied in many industries.
  • LED UV lamps are ideal for the disinfection of fluids, especially flowing water.
  • the LED is a point source and generates a large amount of heat, it is quite difficult to apply the deep ultraviolet LED for disinfection.
  • LEDs are susceptible to contamination, and light-transmissive panels are required to separate the LED lamps from the fluid.
  • a large flow of fluid will have a large impact on the light-transmitting plate, if desired, can be improved.
  • For the strength of the light-transmitting plate it is usually necessary to increase the thickness of the light-transmitting plate, but this will bring about a rapid decrease in the light transmittance and affect the sterilization effect.
  • an object of the present invention is to provide a fluid sterilizing device which can sterilize a large-flow fluid and prevent the light-transmitting plate protecting the sterilizing lamp from being subjected to fluid impact.
  • the present invention also provides a sterilization method for sterilization using the fluid sterilization device.
  • One aspect of the invention provides a fluid sterilization device that can include one or more sterilization modules that divide the fluid sterilization device into two or more a sterilization chamber comprising a sterilization lamp and a lamp cavity containing the sterilization lamp, at least one surface of the lamp cavity being made of a light transmissive plate, the fluid sterilization device further comprising a pressure regulating device The pressure regulating device is in communication with the lamp cavity for adjusting the pressure in the lamp cavity.
  • the pressure regulating device includes a pressure sensor, a gas power machine and a processor, the pressure sensor detects a pressure received by the light transmissive plate, and the processor controls according to the detection result of the pressure sensor.
  • the gas power machine introduces or withdraws gas into the lamp cavity.
  • the pressure regulating device further includes a gas circulation device for circulating the gas.
  • the one or more sterilization modules further comprise a heat sink, the The heat device and the light transmissive plate form a lamp cavity, and the sterilization lamp is fixed on the heat sink.
  • the light transmissive plate has a thickness of 5 mm or less.
  • the heat sink may also be provided with heat sink fins.
  • the heat dissipation fins may be disposed along the direction of fluid flow or perpendicular to the direction of fluid flow.
  • a reflective layer may be provided on the underside of one or more of the chambers.
  • a fluid sterilization method using the fluid sterilization apparatus of the present invention comprising:
  • the pressure of the lamp chamber is adjusted by introducing or withdrawing gas into the lamp chamber through the pressure adjusting device.
  • the method further includes pre-filling the lamp chamber with gas prior to passing the fluid through the fluid sterilizing device; and gradually reducing the pressure of the gas in the lamp chamber after sterilization is completed.
  • the gas may be nitrogen.
  • the gas may be a gas having a temperature between 0 ° C and 20 ° C.
  • the fluid sterilizing device of the present invention comprises a plurality of chambers through the arrangement of the sterilizing module, can be applied to the sterilization and disinfection treatment of the large-flow fluid, and adjusts the lamp chamber provided with the sterilizing lamp by setting the pressure adjusting device
  • the pressure can prevent the light-transmitting plate of the lamp cavity from being broken due to the impact force of the fluid, and can reduce the thickness of the light-transmitting plate, improve the utilization rate of the light emitted by the sterilization lamp, and enhance the disinfection and sterilization effect, so that it is very suitable for use. Sterilization and disinfection of large flow fluids, especially flowing water.
  • Figure 1 shows a front view of an LED fluid sterilizing device of one embodiment of the present application
  • FIG. 2 shows a cross-sectional view of an LED fluid sterilizing device of one embodiment of the present application.
  • the present invention provides a fluid sterilization device that can include one or more sterilization modules that divide the fluid sterilization device into two or more chambers
  • the sterilization module includes a sterilization lamp and a lamp cavity accommodating the sterilization lamp, at least one surface of the lamp cavity is made of a light transmissive plate, and the fluid sterilization device further comprises a pressure regulating device.
  • the pressure regulating device is in communication with the lamp cavity for regulating the pressure in the lamp cavity.
  • the fluid sterilizing device of the present invention comprises a plurality of chambers through the arrangement of the sterilization module.
  • the fluid flows into the sterilizing device from, for example, the upper chamber, and is sterilized and disinfected by the plurality of chambers from the lower layer.
  • the chamber flows out, and the pressure in the lamp chamber for sterilizing the lamp can be adjusted by the setting of the pressure adjusting device, so that the pressure in the lamp chamber can offset the impact of some or all of the fluid on the light-transmitting plate of the lamp cavity, thereby avoiding the penetration.
  • the light plate is broken by the pressure of the fluid, in particular, the thickness of the light-transmitting plate can be reduced, the utilization rate of the light emitted by the sterilization lamp can be improved, and the disinfection and sterilization effect can be improved, thereby being conveniently applied to the sterilization and disinfection treatment of the large-flow fluid.
  • the sterilization lamp can be an ultraviolet LED sterilization lamp. UV LED sterilization lamps have excellent sterilization and disinfection effects.
  • the number of sterilization modules in the fluid sterilizing device of the present invention can be comprehensively considered in accordance with the requirements of the sterilization effect in combination with the cost of the device installation.
  • 1 to 3 sterilization modules may be included in the sterilization device.
  • the pressure regulating device includes a pressure sensor, a gas power machine and a processor, the pressure sensor detects a pressure received by the light transmissive plate, and the processor controls according to the detection result of the pressure sensor.
  • the gas power machine introduces or withdraws gas into the lamp cavity.
  • the pressure sensor can detect the pressure of the light-transmitting plate, and then the processor can control the gas power machine to input or extract gas into the lamp cavity according to the detection result of the pressure sensor and the inherent pressure bearing capacity of the light-transmitting plate to adjust the lamp.
  • the pressure in the cavity can partially or completely offset the impact or pressure from the fluid received by the light-transmitting plate, preventing the light-transmitting plate from being damaged by impact. More specifically, the impact of the fluid received by the light-transmitting plate, that is, the difference between the fluid pressure and the air pressure in the lamp cavity, that is, the pressure of the light-transmitting plate detected by the pressure sensor (the fluid pressure and the air pressure in the lamp chamber) can be made. The resultant force is less than or equal to the pressure bearing capacity of the light-transmitting plate.
  • the pressure sensor can detect the change of the pressure of the transparent plate in real time, and the processor can adjust the operation of the gas power machine to maintain the smooth operation of the fluid sterilization device.
  • a low-temperature gas for example, a gas having a temperature between 0 ° C and 20 ° C, preferably between 5 ° C and 20 ° C
  • the temperature of the sterilization lamp can also be lowered to achieve
  • the heat dissipation function of the lamp can eliminate the need for additional heat dissipation modules, and the device configuration is simpler and the cost can be lower.
  • the number of pressure regulating devices can be adjusted according to the number of sterilization modules.
  • one sterilization module can be provided with a corresponding pressure regulating device; or only one pressure regulating device can be provided, and the one pressure regulating device can pass
  • the trachea is connected to the lamp chambers of a plurality of different sterilization modules, and the one pressure regulating device may comprise a plurality of pressure sensors, the number of the pressure sensors being the same as the number of the sterilization modules, so that each sterilization can be separately detected
  • the pressure of the module's lamp cavity in real time is controlled separately.
  • the pressure regulating device further includes a gas circulation device for circulating the gas.
  • the gas circulation device circulates the gas that is introduced into the lamp cavity, and when the gas is circulated, the heat of the sterilization lamp can be better taken away, and the heat dissipation function is reduced, thereby reducing the use of the heat dissipation structure and reducing the thickness of the product.
  • the cost is reduced to a certain extent; on the other hand, the gas used can be saved, further reducing the cost.
  • the light-transmitting plate may be made of a suitable light-transmitting material as long as it can transmit light emitted from the sterilization lamp, preferably made of a quartz material. That is, the light-transmitting plate is preferably a quartz plate which has a good transmittance to ultraviolet rays and also has a certain strength and can withstand a certain degree of pressure.
  • the light-transmitting plate In order to withstand the impact and pressure from the fluid, the light-transmitting plate needs to have a suitable thickness.
  • a quartz plate formed of a quartz material a transmittance of 280 nm of a 5 mm-thick quartz plate is 82%, a transmittance of 3 mm is 89%, and a transmittance of 2 mm is 92%.
  • the thickness of the mounting member can be reduced, the height or thickness of the LED lamp cavity can be reduced, and the distance from the light to the object can be shortened.
  • the thickness is not as small as possible.
  • the invention reduces the pressure difference between the inner and outer sides of the lamp cavity by the introduction of the pressure adjusting device, and can reduce the pressure that the light transmissive plate needs to bear, so that a thin translucent plate can be used.
  • the thickness of the light-transmitting plate may be 5 mm or less, preferably 3 mm or less, and more preferably 2 mm or less. Most preferably, a quartz plate having a thickness of 0.1 mm can be used as the light-transmitting plate, and at this time, the light transmittance can reach 98%.
  • the one or more sterilization modules may further include a heat sink, the heat sink and the light transmissive plate constitute a lamp cavity, and the sterilization lamp is fixed to the heat dissipation On the device.
  • the heat sink may be connected to the light transmissive plate through the connecting member, thereby constituting the lamp cavity, and the sterilization lamp may be fixed on the lower surface of the heat sink, for example, and the upper surface of the heat sink constitutes a cavity other than the lowermost layer.
  • the bottom surface of each of the outdoor chambers flows through the upper surface of the heat sink when the fluid flows, so that the fluid can be taken away to dissipate heat for heat dissipation.
  • the heat sink may also be provided with heat dissipation fins.
  • the heat dissipating fins may be disposed, for example, on the upper surface of the heat sink, and the fluid may enter the fluid when it passes, so that the fluid flows through the heat dissipating fins, which can better assist the heat dissipating of the heat sink and more fully utilize the fluid to take away.
  • the heat helps to dissipate heat, which greatly improves the heat dissipation.
  • the heat dissipation fins may be disposed along the fluid flow direction or perpendicular to the fluid flow direction. When placed along the direction of fluid flow, it does not impede the flow of fluid.
  • the fluid can pass relatively quickly.
  • the fins When placed perpendicular to the direction of fluid flow, the fins will block the flow of fluid and reduce the speed of fluid flow through the chamber. The time the fluid flows through the chamber.
  • the heat dissipation fin the heat dissipation fins located in the top layer chamber may be along the fluid
  • the flow direction is set so that the fluid can flow through the top chamber more quickly, increasing the overall flow rate; the fins located in other chambers can be placed perpendicular to the direction of fluid flow, thereby reducing the rate at which fluid flows through other chambers. , to increase the time that fluid flows through other chambers for better sterilization.
  • FIG. 1 shows a front view of an LED fluid sterilizing apparatus of one embodiment of the present application (a pressure regulating device is not shown).
  • the LED fluid sterilizing apparatus 1 has a liquid inlet port 11 and a liquid outlet port 12.
  • Fig. 2 shows a cross-sectional view thereof (showing a pressure regulating device).
  • the sterilization device is provided with two sterilization modules, and the sterilization device is divided into upper, middle, and lower chambers, an upper chamber 13, a middle chamber 14, and a lower chamber 15.
  • the sterilization module includes a heat sink 110, a sterilization lamp fixed on the heat sink 110, and a light-transmitting plate 111 covering the sterilization lamp, and the light-transmitting plate seals the sterilization lamp to protect the sterilization lamp from fluid contamination.
  • the heat sink 110 also includes heat sink fins 112 and 113 on the heat sink.
  • the lamp chambers of the two heat dissipation plates 110 are connected to the pressure regulating device 114 through a pipe, and the pressure adjusting device includes two pressure sensors (detecting the pressure of the light-transmitting plates in the two lamp chambers respectively), a gas power machine and a processor (specific structure
  • the pressure regulating device adjusts the pressure in the lamp chamber according to the fluid pressure received by the light-transmitting plate to maintain the smooth operation of the fluid sterilizing device. As shown in Fig.
  • the fluid flows from the upper chamber into the sterilizing device through the liquid inlet, then flows to the middle chamber to the lower chamber, and is sterilized by ultraviolet rays emitted from the sterilization lamp in the middle and lower chambers. , flowing out from the liquid outlet.
  • the heat dissipating fins 113 located in the upper chamber 13 are disposed along the fluid flow direction, and the heat dissipating fins 112 located in the middle chamber 14 are disposed along the vertical fluid flow direction.
  • the fluid sterilizing apparatus of the preferred embodiment of the present application can achieve a disinfecting ability of 60 L of water per minute, and can be tested to achieve a sterilization efficiency of 99.99%. It can also be noted that the fluid sterilizing device of the present application can achieve efficient sterilization of a large flow of fluid.
  • a reflective layer may be provided on the bottom surface of one or more of the chambers.
  • a reflective layer can be disposed on the bottom surface of the chamber other than the top chamber, and the reflective layer can be configured to reflect the light emitted by the sterilization lamp back into the fluid to improve the utilization of light, thereby improving the efficiency of sterilization.
  • the reflective layer can be, for example, mirror aluminum.
  • the reflective layer may be disposed on the bottom surface of each chamber at a certain inclination angle.
  • a fluid stop may be provided in the bottom chamber.
  • the fluid block is set to reduce the fluid flow rate, prolong the flow of fluid in the chamber for adequate sterilization, while also stabilizing the flow rate, extending the water path and reducing the dead zone.
  • the above functions of the fluid stop can be achieved by setting functions of different shapes. More preferably, for example, the height of the fluid block is the same as the height of the bottom chamber. The same fluid block as the height of the bottom chamber allows fluid to flow through the fluid block and along the fluid path formed by the fluid block, thereby better achieving the above advantages of the fluid block.
  • the function is OK. For example, it may be wavy or linear.
  • the fluid stop can be disposed in various directions, for example, can be formed in a fluid flow direction, perpendicular to the fluid flow direction, or form a certain angle of inclination with the fluid flow direction.
  • the sterilization lamp on the bottom chamber is disposed along the fluid path. That is, the sterilization lamps in the sterilization module on the bottom chamber are all disposed above the fluid path, and are not disposed above the respective fluid stops, so as to prevent the ultraviolet rays emitted by the sterilization lamps from being blocked by the fluid block. Damage the effect of sterilization.
  • a reflective layer is also disposed on the surface of the fluid block.
  • the arrangement of the reflective layer on the fluid block can also reflect the light emitted by the sterilization lamp back into the fluid, improve the utilization of light, and further improve the efficiency of sterilization.
  • a light reflecting layer is provided on the side of each fluid block.
  • the present invention also provides a fluid sterilization method using the fluid sterilization apparatus of the present invention.
  • the method comprises: passing a fluid through the fluid sterilizing device of the present application; and simultaneously, introducing a gas into the lamp cavity through the pressure regulating device to adjust the pressure of the lamp cavity.
  • the gas is introduced or extracted into the lamp cavity according to the pressure of the fluid to the light-transmitting plate of the lamp cavity of the heat-dissipating module in the sterilizing device, and the gas is adjusted.
  • the pressure on the light plate ensures smooth operation of the entire sterilizing unit.
  • the fluid when the fluid enters the sterilizing device, a certain impact force is generated on the light-transmitting plate, and therefore, it is preferable to pre-charge the gas into the lamp cavity before passing the fluid through the fluid sterilizing device, and
  • the pressure of the gas on the light-transmitting plate is slightly smaller than the pressure-bearing capacity of the light-transmitting plate, and then the light-transmitting plate is not damaged by the impact force of the fluid when the fluid enters the corresponding chamber of the sterilization device.
  • the pressure of the fluid according to the light-transmitting plate can be controlled to be reduced, the pressure of the gas in the lamp cavity is gradually reduced, and the resultant force of the light-transmitting plate is maintained at a low level. Level to ensure the normal operation of fluid sterilization.
  • the gas flowing into the lamp chamber can be circulated by the gas circulation device, so that the flowing gas can take away the heat of the sterilization lamp and play a role of heat dissipation. It also saves the gas used and reduces costs.
  • the gas is nitrogen.
  • Nitrogen has a low absorption rate of ultraviolet light.
  • the use of nitrogen to adjust the pressure in the lamp cavity can reduce the loss of deep ultraviolet rays, help to improve the utilization of light emitted by the sterilization lamp, and enhance the effect of sterilization.
  • a low temperature gas having a temperature between 0 ° C and 20 ° C can be introduced into the lamp cavity.
  • the low temperature gas can also serve to cool the sterilization lamp, thereby saving
  • the additional heat sink arrangement makes the overall composition of the sterilization device simpler, saving volume and reducing manufacturing costs.

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  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
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Abstract

本发明提供了一种流体灭菌装置，包括一个或多个灭菌模块，所述一个或多个灭菌模块将所述流体灭菌装置分成两个或更多个腔室；所述灭菌模块包括灭菌灯以及容纳所述灭菌灯的灯腔，所述灯腔的至少一个表面由透光板制成，所述流体灭菌装置还包括压力调节装置，所述压力调节装置与所述灯腔连通，用于调节所述灯腔中的压力。本发明的流体灭菌装置，通过设置压力调节装置调节设置有灭菌灯的灯腔中的压力，可以避免灯腔的透光板由于流体的冲击力和压力而破碎，而且可以降低透光板的厚度，提高灭菌灯发出的光的利用率，提升消毒灭菌效果，从而非常适合用于大流量的流体尤其是流动的水的灭菌和消毒。

Description

流体灭菌装置以及灭菌方法 技术领域
本发明涉及紫外线消毒灭菌领域，更具体而言涉及一种流体灭菌装置以及灭菌方法。
背景技术
众所周知，紫外线具有杀菌消毒作用，目前已经利用发光二极管(LED)制造出具有杀菌效果的LED紫外线灯，这种LED紫外线杀菌灯同传统的水银紫外线杀菌灯相比，具有消耗电能少、安全性高、体积小的优点，目前已在许多行业得到了应用。
由于其安全性高、体积小的优点，LED紫外线灯非常适合用于流体尤其是流水的消毒。但是在实际场景中，因为LED为点光源，而且会产生大量的热，因此应用深紫外LED进行消毒也有相当的难度。尤其是，LED易于受到污染，需要透光板将LED灯与流体隔开，但是对大流量的流体进行消毒时，大流量的流体会对透光板带来很大的冲击，如果希望能提高透光板的强度，则通常需要增大透光板的厚度，但这会带来透光率的迅速下降，影响灭菌效果。
为了解决上述问题，需要一种具有透光板防碎功能的流体灭菌装置。
发明内容
鉴于上述问题，本发明的目的在于，提供一种流体灭菌装置，该流体灭菌装置可以对大流量的流体进行消毒灭菌，而且可以避免保护灭菌灯的透光板受流体冲击而受损，本发明还提供了一种采用该流体灭菌装置进行灭菌的灭菌方法。
本发明一方面提供了一种流体灭菌装置，该流体灭菌装置可以包括一个或多个灭菌模块，所述一个或多个灭菌模块将所述流体灭菌装置分成两个或更多个腔室；所述灭菌模块包括灭菌灯以及容纳所述灭菌灯的灯腔，所述灯腔的至少一个表面由透光板制成，所述流体灭菌装置还包括压力调节装置，所述压力调节装置与所述灯腔连通，用于调节所述灯腔中的压力。
根据本发明一些优选的实施方案，所述压力调节装置包括压力传感器、气体动力机和处理器，所述压力传感器检测透光板所承受的压力，所述处理器根据所述压力传感器的检测结果控制所述气体动力机向所述灯腔中通入或抽出气体。
进一步地，该压力调节装置还包括气体循环装置，用于使所述气体循环运行。
根据本发明一些优选的实施方案，所述一个或多个灭菌模块还包括散热器，所述散 热器与所述透光板构成灯腔，所述灭菌灯固定于所述散热器上。
根据本发明一些优选的实施方案，所述透光板的厚度为5mm以下。
根据本发明一些优选的实施方案，散热器还可以设置有散热鳍片。
更优选地，所述散热鳍片可以沿流体流动方向设置或者垂直于流体流动方向设置。
根据本发明另一些优选的实施方案，在一个或多个腔室底面可以设置有反光层。
根据本发明的另一方面，提供一种流体灭菌方法，所述流体灭菌方法采用本发明的流体灭菌装置进行，包括：
使流体经过所述流体灭菌装置；同时
通过压力调节装置，向灯腔中通入或抽出气体，调节灯腔的压力。
进一步地，所述方法进一步包括：在使流体经过所述流体灭菌装置之前，向所述灯腔中预先充入气体；以及在灭菌完成后，逐渐减小灯腔中气体的压力。
更具体地，所述气体可以为氮气。
所述气体可以为温度在0℃至20℃之间的气体。
有益效果
本发明的流体灭菌装置，通过灭菌模块的设置而包括多个腔室，可以应用于大流量流体的灭菌消毒的处理，而且通过设置压力调节装置调节设置有灭菌灯的灯腔中的压力，可以避免灯腔的透光板由于流体的冲击力而破碎，而且可以降低透光板的厚度，提高灭菌灯发出的光的利用率，提升消毒灭菌效果，从而非常适合用于大流量的流体尤其是流动的水的灭菌和消毒。
附图说明
从下面结合附图的详细描述中，将会更加清楚的理解本发明的上述及其他目的、特征和其他优点，其中，
图1示出了本申请一个实施方案的LED流体灭菌装置的主视图；
图2示出了本申请一个实施方案的LED流体灭菌装置的剖视图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施方案，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施方案仅用以解释本发明，并不用于限定本发明。
本发明提供了一种流体灭菌装置，该流体灭菌装置可以包括一个或多个灭菌模块，所述一个或多个灭菌模块将所述流体灭菌装置分成两个或更多个腔室；所述灭菌模块包括灭菌灯以及容纳所述灭菌灯的灯腔，所述灯腔的至少一个表面由透光板制成，所述流体灭菌装置还包括压力调节装置，所述压力调节装置与所述灯腔连通，用于调节所述灯腔中的压力。
本发明的流体灭菌装置，通过灭菌模块的设置而包括多个腔室，使用时，流体从例如上层腔室流入灭菌装置，经过多个腔室接受灭菌灯的杀菌消毒后从下层腔室流出，通过压力调节装置的设置，可以调节容纳灭菌灯的灯腔中的压力，使得灯腔中的压力可以抵消掉部分或者全部的流体对灯腔透光板的冲击，从而避免透光板受流体的压力破裂，尤其是可以降低透光板的厚度，提高灭菌灯发出的光的利用率，提升消毒灭菌效果，从而非常方便应用于大流量流体的灭菌消毒的处理。
所述灭菌灯可以为紫外LED灭菌灯。紫外LED灭菌灯具有优异的杀菌消毒效果。
本发明的流体灭菌装置中的灭菌模块的数目可以根据灭菌效果的要求，结合装置设置的成本综合考虑。优选地，灭菌装置中可以包含1至3个灭菌模块。
根据本发明一些优选的实施方案，所述压力调节装置包括压力传感器、气体动力机和处理器，所述压力传感器检测透光板所承受的压力，所述处理器根据所述压力传感器的检测结果控制所述气体动力机向所述灯腔中通入或抽出气体。具体地，压力传感器可以检测透光板承受的压力，然后处理器根据压力传感器的检测结果以及透光板的固有的承压能力，可以控制气体动力机向灯腔中输入或者抽出气体，以调节灯腔中的压力，从而灯腔中的压力可以部分或者全部地抵消透光板受到的来自流体的冲击或压力，避免透光板受到冲击而破损。更具体地，可以使得透光板受到的流体的冲击，即流体压力与灯腔中的气压的差值，即压力传感器检测到的透光板所承受的压力(流体压力与灯腔中的气压的合力)小于或者等于透光板的承压能力。压力传感器可以实时检测透光板承受的压力的变化，处理器可以据此调节气体动力机的运行，保持流体灭菌装置的平稳运行。另外，通过向灯腔中通入低温的气体，例如，温度为0℃至20℃之间的气体，优选5℃至20℃之间的气体，还可以降低灭菌灯的温度，实现对灭菌灯的散热功能，从而可以省去额外的散热模块的设置，装置构成更简单，成本也可以更低。本申请中，压力调节装置的数目可以根据灭菌模块的数目进行调整，例如，一个灭菌模块可以设置一个对应的压力调节装置；或者也可以只设置一个压力调节装置，该一个压力调节装置通过气管与多个不同的灭菌模块的灯腔相连，该一个压力调节装置可以包括多个压力传感器，压力传感器的数目与灭菌模块的数目相同，从而可以分别检测每个灭菌 模块的灯腔实时所承受的压力，分别进行控制。
进一步地，该压力调节装置还包括气体循环装置，用于使气体循环运行。该气体循环装置使得通入灯腔中的气体循环运行，气体循环运行时，一方面可以更好地带走灭菌灯的热量，起到散热的作用，从而减少散热结构的使用，降低产品厚度和在一定程度上降低成本；另一方面也可以节约所使用的气体，进一步降低成本。
透光板可以由合适的透光材料制成，只要能透过灭菌灯发出的光线即可，优选由石英材料制成。即，透光板优选为石英板，石英板对紫外线具有良好的透过率，而且也具有一定的强度，可以承受一定程度的压力。
为了承受来自流体的冲击和压力，透光板需要具有合适的厚度，透光板厚度越厚，承压能力越强，但透光率越低，则同等发光强度下，所能产生的灭菌效果越差。例如，对于石英材料形成的石英板，5mm厚的石英板280nm的透过率为82％，3mm的透过率为89％，2mm的透过率为92％。透光率越高，则同等情况下光的利用率越高，而且，由于透光板变薄，可以减少安装件的厚度，减少LED灯腔的高度或者厚度，缩短光到被照物的距离，降低深紫外光衰减，综合而言，可以极大地提高杀菌消毒效果。但是，为了维持透光板的强度，厚度也不是越小越好。本发明通过压力调节装置的引入，减小灯腔内外压差，可以减小透光板需要承受的压力，从而可以采用较薄的透光板。本申请中，透光板的厚度可以为5mm以下，优选可以为3mm以下，更优选可以为2mm以下。最优选地，可以采用厚度为0.1mm的石英板作为透光板，此时，光的透过率可以达到98％。
为了提升所述灭菌模块的散热性能，所述一个或多个灭菌模块还可以包括散热器，所述散热器与所述透光板构成灯腔，所述灭菌灯固定于所述散热器上。具体而言，例如散热器可以和透光板通过连接件连接，由此构成灯腔，灭菌灯可以例如固定在散热器的下表面上，此时散热器上表面构成除位于最下层的腔室外各腔室的底面，流体流动时流经散热器的上表面，从而可以利用流体带走热量，进行散热。
优选地，散热器还可以设置有散热鳍片。散热鳍片可以例如设置于散热器的上表面上，流体经过时会进入流体中，使得流体流动时会流经散热鳍片，可以更好地辅助散热器的散热，更充分地利用流体带走热量，辅助进行散热，从而极大地提高了散热效果。另外，关于散热鳍片的设置方向，所述散热鳍片可以沿流体流动方向设置或者垂直于流体流动方向设置。沿流体流动方向设置时，不会阻碍流体的流动，流体可以比较迅速地通过，沿垂直于流体流动的方向设置时，散热鳍片会阻碍流体的流动，降低流体流经腔室的速度，增长流体流经腔室的时间。从而，进一步地，所述散热鳍片中，位于顶层腔室中的散热鳍片可以沿流体 流动方向设置，由此流体可以比较迅速地流经顶层腔室，提高整体的流速；位于其他腔室中的散热鳍片可以垂直于流体流动方向设置，从而可以降低流体流经其他腔室的速度，增长流体流经其他腔室的时间，取得更好的杀菌效果。
图1示出了本申请一个实施方案的LED流体灭菌装置的主视图(图中未示出压力调节装置)。如图1所示，LED流体灭菌装置1具有进液口11和出液口12。图2示出了其剖视图(示出压力调节装置)。该灭菌装置中设置有两个灭菌模块，将灭菌装置分成上中下三个腔室，上腔室13、中腔室14和下腔室15。杀菌模块包括散热器110，固定在散热器110上的灭菌灯，以及覆盖灭菌灯的透光板111，透光板密封灭菌灯，以保护灭菌灯免受流体的污染。散热器110还包括位于散热器上的散热鳍片112和113。两个散热板110的灯腔通过管道与压力调节装置114相连，该压力调节装置包括两个压力传感器(分别检测两个灯腔中透光板承受的压力)、气体动力机以及处理器(具体结构图中未示出)，该压力调节装置根据透光板承受的流体压力的情况，相应调节灯腔中的压力，维持流体灭菌装置的平稳运行。如图2所示，可知流体经进液口从上腔室流入灭菌装置，然后流到中腔室直至下腔室，在中、下腔室中利用灭菌灯发出的紫外线进行灭菌后，从出液口流出。其中，位于上腔室13中的散热鳍片113沿流体流动方向设置，位于中腔室14中的散热鳍片112沿垂直流体流动方向设置。
本申请优选的实施方案的流体灭菌装置可以实现每分钟60L水的消毒能力，且经测试，可以达到99.99％的灭菌效率。也可以说明，本申请的流体灭菌装置可以实现大流量流体的高效灭菌。
优选地，在一个或多个腔室底面可以设置有反光层。尤其是，可以在除顶层腔室之外的其他腔室底面设置反光层，反光层的设置，可以将灭菌灯发出的光线反射回流体中，提高光的利用率，从而提高杀菌消毒的效率。反光层例如可以为镜面铝。进一步地，为了避免反光层反射的光直射回灭菌灯造成灭菌灯的损坏，可以将反光层以一定的倾斜角度设置在各腔室的底面上。
优选地，在底层腔室中可以设置有流体挡块。流体挡块的设置可以降低流体流速，延长流体在腔室中流动的时间，以进行充分的杀菌消毒，同时还可以使流速稳定，延长走水路径，减少死水区。流体挡块的上述功能可以通过设置不同形状的功能实现。例如，更优选地，所述流体挡块的高度与所述底层腔室的高度相同。与底层腔室的高度相同的流体挡块，可以使得流体不能漫过该流体挡块流动，而沿流体挡块形成的流体路径流动，从而可以更好地实现流体挡块的上述优点。对流体挡块的具体形状，没有特殊限制，只要可以实现挡块的 功能即可。例如，可以为波浪形或者直线形。流体挡块可以沿各种方向设置，例如可以沿流体流动方向、垂直于流体流动方向或者与流体流动方向形成一定倾角设置。在这种情况下，所述底层腔室上的灭菌灯沿所述流体路径设置。即，将该底层腔室上的灭菌模块中的灭菌灯，均设置于流体路径的上方，而不设置于各流体挡块的上方，避免灭菌灯发出的紫外线被流体挡块挡住，损害消毒灭菌的效果。
进一步地，在所述流体挡块表面也设置有反光层。流体挡块上的反光层的设置也可以将灭菌灯发出的光线反射回流体中，提高光的利用率，进一步提高杀菌消毒的效率。优选地，在各流体挡块的侧面设置反光层。
本发明还提供了一种流体灭菌方法，采用本发明的流体灭菌装置进行。该方法包括：使流体经过本申请的流体灭菌装置；同时，通过压力调节装置，向灯腔中通入气体，调节灯腔的压力。通过本申请的流体灭菌方法，在使得流体流经流体灭菌装置时，根据流体对灭菌装置中散热模块灯腔的透光板的压力，向灯腔中通入或抽出气体，调节透光板承受的压力，从而可以保证整个灭菌装置的平稳运行。
进一步地，在流体进入灭菌装置时，会对透光板产生一定的冲击力，因此，优选在使流体经过所述流体灭菌装置之前，向所述灯腔中预先充入气体，并使得气体对透光板的压力略小于透光板的承压能力，之后在流体进入灭菌装置的相应腔室时，透光板不至于由于流体的冲击力受到损坏。在灭菌完成后，随着流体流量的降低，可以控制根据透光板承受的流体的压力的减小，逐渐减小灯腔中气体的压力，将透光板承受的合力维持在较低的水平，保证流体灭菌的正常运行。
根据本发明一些优选的实施方案，可以通过气体循环装置使得通入灯腔中的气体循环运行，从而，一方面流动的气体可以带走灭菌灯的热量，起到散热的作用，另一方面也可以节约所使用的气体，降低成本。
更具体地，所述气体为氮气。氮气对紫外线的吸收率较低，使用氮气来调节灯腔中的压力，可以减小对深紫外线的损耗，有助于提高灭菌灯发出的光的利用率，提升消毒灭菌的效果。
更进一步地，可以向灯腔中通入温度在0℃至20℃之间的低温气体，低温气体除调节灯腔中的压力外，还可以起到给灭菌灯降温的作用，从而可以省去额外的散热装置的设置，使得灭菌装置整体构成更简单，可以节省体积，降低制作成本。
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则 之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (12)

  1. 一种流体灭菌装置，包括一个或多个灭菌模块，所述一个或多个灭菌模块将所述流体灭菌装置分成两个或更多个腔室；所述灭菌模块包括灭菌灯以及容纳所述灭菌灯的灯腔，所述灯腔的至少一个表面由透光板制成，所述流体灭菌装置还包括压力调节装置，所述压力调节装置与所述灯腔连通，用于调节所述灯腔中的压力。
  2. 如权利要求1所述的流体灭菌装置，其中，所述压力调节装置包括压力传感器、气体动力机和处理器，所述压力传感器检测透光板所承受的压力，所述处理器根据所述压力传感器的检测结果控制所述气体动力机向所述灯腔中通入或抽出气体。
  3. 如权利要求2所述的流体灭菌装置，其中，所述压力调节装置还包括气体循环装置，用于使所述气体循环运行。
  4. 如权利要求1所述的流体灭菌装置，其中，所述一个或多个灭菌模块还包括散热器，所述散热器与所述透光板构成灯腔，所述灭菌灯固定于所述散热器上。
  5. 如权利要求1所述的流体灭菌装置，其中，所述透光板的厚度为5mm以下。
  6. 如权利要求4所述的流体灭菌装置，其中，所述散热器上还设置有散热鳍片。
  7. 如权利要求6所述的流体灭菌装置，其中，所述散热鳍片沿流体流动方向设置或者垂直于流体流动方向设置。
  8. 如权利要求1所述的流体灭菌装置，其中，在一个或多个腔室底面设置有反光层。
  9. 一种流体灭菌方法，所述流体灭菌方法采用权利要求1-8中任一项所述的流体灭菌装置进行，包括：
    使流体经过所述流体灭菌装置；同时
    通过压力调节装置，向灯腔中通入或抽出气体，调节灯腔的压力。
  10. 如权利要求9所述的流体灭菌方法，其中，所述方法进一步包括：在使流体经过所述流体灭菌装置之前，向所述灯腔中预先充入气体；以及在灭菌完成后，逐渐减小灯腔中气体的压力。
  11. 如权利要求9所述的流体灭菌方法，其中，所述气体为氮气。
  12. 如权利要求9所述的流体灭菌方法，其中，所述气体为温度在0℃至20℃之间的气体。
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CN204901428U (zh) * 2015-08-31 2015-12-23 福建中科芯源光电科技有限公司 一种led灯具及其压力平衡结构
CN105953117A (zh) * 2016-06-06 2016-09-21 李峰 具有内置式压力补偿器的led灯

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